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  4. pBR 322, which is frequently used as a vector for cloning gene in E. coli is a/an

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Q. $pBR _{322}$, which is frequently used as a vector for cloning gene in $E$. coli is a/an

AIIMSAIIMS 2010

Solution:

E. coli plasmid $pBR _{322}$ is the most versatile and widely used cloning vector, it contains both ampicillin and tetracyclin-resistance genes and a number of unique restriction enzyme cleavage sites.